Gluino and squark production in association with gauginos at hadron supercolliders

Abstract

We calculate production cross sections for gluinos and squarks produced in association with charginos and neutralinos at $\mathrm{pp}$ supercollider energies. We show that, with rather stiff cuts, a signal for $\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{g}{\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{Z}}_{1}$ and $\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{g}{\stackrel{\ifmmode \tilde{}\else \~{}\fi{}}{Z}}_{1}$ may be isolated from the standard-model background as well as from other super-symmetric processes; this channel may offer the best hope of a gluino mass measurement. We also estimate potential signal rates from hemispherically separated multilepton-plus-jet events that result if the chargino or neutralino decays via the purely leptonic mode.